JP2019117223A - Display with panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for making a boundary between a display surface of a display device and a member provided around the display device inconspicuous in an image non-display state. A display device (10) with a panel includes a display device (20), a panel member (40), and a dark-colored sheet (50). The display device 20 has a display surface 21. The panel member 40 is arranged so as to form a boundary with the display surface 21 when observed from the normal direction to the display surface 21. The dark color sheet 50 is arranged so as to cover the boundary between the display surface 21 and the panel member 40. L * 1, which is the value of L * in the L * a * b * color system of the dark color sheet 50 measured by the transmitted light, is 20 or less. [Selection diagram] Fig. 1

Description

  The present invention relates to a display device with a panel.

  For example, a display device for displaying image light as described in Patent Document 1 is known. Such a display device is usually observed in black in the image non-display state. On the other hand, for example, in surface members such as automobiles, furniture, and housing materials, designability is regarded as very important. At present, in display devices applied to various fields, not only the function of simply displaying an image is expected, but also harmony with the surrounding environment on the design surface is required.

Unexamined-Japanese-Patent No. 9-114003 gazette

  By the way, in the image non-display state, the presence of the display surface of the display device may be noticeable. If the presence of the display surface of the display device is noticeable in the image non-display state, the harmony of the design with the surrounding environment is disturbed. Therefore, it has been considered to provide a member having a design similar to the display surface of the display device in the image non-display state, typically a black member, on the periphery of the display device. However, as shown in FIG. 5, simply providing a black member around the display device has not made the presence of the display device sufficiently inconspicuous. As a result of the confirmation by the present inventors, the display surface was distinguished by the recognition of the boundary between the display surface of the display device and the members provided around the display device. Therefore, it is desirable not to make the boundary between the display surface of the display device and the members provided around the display device inconspicuous.

  The present invention has been made in consideration of such points, and it is an object of the present invention to make the boundary between the display surface of a display device and members provided around the display device inconspicuous in an image non-display state. Do.

The display device with panel of the present invention is
A display device having a display surface;
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface;
A dark sheet disposed so as to cover the boundary between the display surface and the panel member;
L ^* ₁ which is the value of L ^* in the L ^* a ^* b ^* color system of the dark sheet measured by transmitted light is 20 or less.

In panel-equipped display device of the present invention, the ^b _{* 1} is the dark color sheet ^L * ^a * ^{b * a} _{* 1} and ^{b *} values are values of ^{a *} in the color system is determined by the transmitted light, The following relationship may be satisfied.
_{^{((A * 1) 2 +}} (b * 1) 2) 1/2 ≦ 48

  In the display with panel according to the present invention, the dark sheet may contain a black pigment.

  In the display device with panel according to the present invention, the visible light transmittance of the dark sheet may be 40% or more and 60% or less.

In the display with a panel according to the present invention, the display with the panel measured by reflected light of a portion where the display surface of the display and the dark sheet overlap in the observation from the normal direction to the display surface. The L of the display with a panel is measured by L ^* _a which is the value of L ^* in the L ^* a ^* b ^* color system of the device, and the reflected light of the portion where the panel member and the dark sheet overlap. ^The following relationship may be satisfied with L ^* _b , which is the value of L ^{* in} the ^* a ^* b ^* color system.
│ L ^* _a- L ^* _b │ ≦ 3

  According to the present invention, in the image non-display state, it is possible to make the boundary between the display surface of the display device and members provided around the display device inconspicuous.

FIG. 1 is an exploded perspective view schematically showing each element of the display with panel. FIG. 2 is a cross-sectional view of a display device with a panel. FIG. 3 is a front view showing the display device with panel in the state where an image is displayed on the display surface. FIG. 4 is a front view showing the display device with panel in the state where an image is not displayed on the display surface. FIG. 5 is a front view showing a conventional display device in a state where an image is not displayed on the display surface.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of easy illustration and understanding, the scale, the dimensional ratio in the vertical and horizontal directions, etc. are appropriately changed from those of the actual one and exaggerated.

  In the present specification, the terms "layer", "sheet" and "film" are not distinguished from one another based only on the difference in designation. For example, the term "sheet" is a concept including members such as layers or films.

  In addition, as used herein, the terms such as “parallel”, “orthogonal”, “identical”, values of length and angle, etc., which specify the shape and geometrical conditions and their degree, etc. Without being bound by the meaning, it shall be interpreted including the extent to which the same function can be expected.

  FIG. 1 is an exploded perspective view schematically showing a panel-equipped display device 10 according to an embodiment of the present invention. As shown in FIG. 1, the display device with panel 10 includes a display device 20 and a panel 30. In the illustrated example, the paneled display device 10 is shown as a flat plate, but each component of the paneled display device 10 as will be described later is curved to allow the paneled display device 10 to The shape may be curved.

  The display device 20 is a device that emits image light, and has a display surface 21 that can emit image light. As the display device 20, any display device such as a liquid crystal display, a plasma display, or an organic EL display can be used. The display surface 21 of such a display device 20 is typically a glass surface.

  The panel 30 is a member disposed on the display surface 21 side of the display device 20. The panel 30 has a panel member 40 disposed adjacent to the display surface 21 and a dark sheet 50 disposed so as to cover the panel member 40 from the side opposite to the display device 20. As shown in FIG. 2, the panel member 40 is disposed so as to form a boundary B with the display surface 21 in the observation from the normal direction to the display surface 21. Further, the outermost surface of the dark-colored sheet 50 is an outer surface 11 including an emission surface for emitting image light from the display device with panel 10. That is, the first portion A1 which is a portion where the display surface 21 and the dark color sheet 50 overlap, the panel member 40 and the dark color sheet 50 on the outer surface 11 in the observation from the normal direction to the display surface 21. There is a second portion A2 which is an overlapping portion, and the boundary between the first portion A1 and the second portion A2 is a boundary B. The panel member 40 also has an opening 47. In the observation from the normal direction to the display surface 21, the display surface 21 is located in the opening 47. Furthermore, the dark sheet 50 can transmit visible light. Therefore, the image light emitted from the display surface 21 of the display device 20 can be transmitted through the panel member 40 through the opening 47 and can be transmitted through the dark sheet 50. That is, the image light emitted from the display device 20 can be transmitted through the panel 30. When the image light passes through the panel 30, the image light is emitted from the outer surface 11, and an external observer facing the panel-equipped display device 10 can observe an image formed by the image light.

  In addition, the specific aspect of the image light said here is not specifically limited, Image light may contain whole light irrespective of a specific kind and content. Typically, light representing specific information may constitute image light, but light having any other aspect (e.g. light representing irregular patterns or light representing no specific information) Light may be configured. For example, the image light may be light for displaying an image by transmitting a transparent film or the like on which printing is performed, or may be light for displaying a light and dark image by a light shielding material.

  Next, the panel member 40 will be described. As described above, the panel member 40 is disposed adjacent to the display surface 21 in the observation from the normal direction of the display surface 21. That is, the panel member 40 forms a boundary B with the display surface 21 in the observation from the normal direction of the display surface 21. In the example shown in FIGS. 1 and 2, the panel member 40 is provided around the display device 20 when the display device with a panel 10 is observed from the front. Conversely, the display device 20 is installed in the area where the panel member 40 is provided, and the display device 20 forms the panel-equipped display device 10 together with the panel member 40. The panel member 40 has a design similar to that during image non-display of the display device 20 so as not to make the display device 20 noticeable when the image non-display of the display device 20, and is typically black. The panel member 40 is, for example, a plate-like member having a thickness of 0.5 mm or more and 2.0 mm or less. The panel member 40 may be a flat member, a curved member, or a member including a flat portion and a curved portion.

  As shown in FIG. 2, the panel member 40 includes a base portion 41 and a decorative portion 45 provided on the base portion 41. The base portion 41 is a member capable of appropriately supporting the elements of the panel member 40, in the present embodiment, the decorative portion 45. The decorative portion 45 is a member for providing the panel member 40 with a design, and is typically black. Such a decorative portion 45 is formed of, for example, a resin containing a black pigment. However, depending on the environment in which the panel member 40 is provided, the decorative portion 45 may impart arbitrary design properties such as wood grain and marble.

  As shown in FIG. 1, the panel member 40 has a rectangular shape with a rectangular opening 47. However, the present invention is not limited to this, and the panel member 40 may have a shape such as an L-shape or a U-shape in which a part is excluded from the rectangle. Even in such a shape, the image light emitted from the display surface 21 is the panel member by positioning the display surface 21 within the portion removed from the rectangle of the panel member 40 in the observation from the normal direction to the display surface 21 40 can be transmitted. Further, the panel member 40 is not limited to a rectangular shape, and may have an arbitrary shape such as a circular shape. Furthermore, the shape of the opening 47 may be any shape.

Next, the dark sheet 50 will be described. The dark sheet 50 is disposed so as to cover the boundary B between the display surface 21 and the panel member 40 when observed from the front of the display surface 21. The dark sheet 50 is larger than the opening 47 of the panel member 40. The dark sheet 50 has a dark color and is typically a black color. Specifically, in the dark sheet 50, L ^* _1, which is the value of L ^* in the L ^* a ^* b ^* colorimetric system measured by transmitted light, is 20 or less, and L is measured by transmitted light. ^* a ^* b ^{* b} _{* 1} is ^a _{* 1} and ^{b *} values are values of ^{a *} in the color system satisfies the following relationship.
_{^{((A * 1) 2 +}} (b * 1) 2) 1/2 ≦ 48
The dark sheet 50 preferably contains a black pigment so that the dark sheet 50 has a color satisfying such a relationship. Examples of the black pigment contained in the dark colored sheet 50 include carbon black and titanium black.

The value of L ^* , the value of a ^{* and} the value of b ^{* in} the L ^* a ^* b ^* color system can be measured using a colorimeter or a spectrocolorimeter. The L ^* value, a ^* value and b ^* value of the dark sheet 50 may be measured from the reflected light of the dark sheet 50 using, for example, a spectrophotometric system ("CM-700d" manufactured by Konica Minolta) it can. As conditions, the main light source uses D65, the display system uses L ^* a ^* b ^* , and the color difference equation uses ΔE ^* ab (CIE 1976).

  Further, as described above, the dark sheet 50 can transmit visible light. Specifically, the visible light transmittance of the dark sheet 50 is preferably 40% or more and 60% or less. Here, the visible light transmittance is each wavelength when measured within a measurement wavelength range of 380 nm to 780 nm using a spectrophotometer (“UV-3100 PC” manufactured by Shimadzu Corporation, a product conforming to JIS K 0115). Is identified as the average value of the transmittance at

As described later, the dark color sheet 50 can make the boundary B between the display surface 21 of the display device 20 and the panel member 40 which is a member provided around the display device 20 inconspicuous. That is, when the display device with a panel 10 described above is observed from the normal direction to the display surface 21 of the display device 20, a first portion, which is a portion where the display surface 21 shown in FIG. a moiety which are overlapped and ^L _{* a} is a value of ^{L *} in ^{the L} * ^a * ^{b *} color system of the panel-equipped display device 10 as measured by the reflected light A1, the panel member 40 and the dark color sheet 50 The following relationship is satisfied with L ^* _b which is the value of L ^* in the L ^* a ^* b ^* color system of the display with panel 10 measured by the reflected light of the second portion A2.
│ L ^* _a- L ^* _b │ ≦ 3

Here, the L ^* value of the panel-attached display device 10 of the first portion A1 and the second portion A2 is the value of the first portion A1 and the second portion A2 using the spectral colorimetric system ("CM-700d" manufactured by Konica Minolta). It can measure from the reflected light of the display apparatus 10 with a panel in 2 part A2. As conditions, the main light source uses D65, the display system uses L ^* a ^* b ^* , and the color difference equation uses ΔE ^* ab (CIE 1976).

  Preferably, the dark sheet 50 is disposed so as to cover the entire surface of the display surface 21 when the panel-equipped display device 10 is observed from the front of the display surface 21, and more preferably the dark sheet 50 is more preferably used for the display surface 21 and the panel member 40. It is arranged to cover the entire surface. By this, the fall of the designability by visual recognition of the difference which arises by the presence or absence of the dark color sheet 50 can be avoided.

  Next, the operation of the display device with panel 10 according to the present embodiment will be described.

  FIG. 3 shows the panel-equipped display device 10 of the present embodiment in the state where an image is displayed on the display surface 21. As described above, the image light emitted from the display surface 21 passes through the opening 47 of the panel member 40 and is transmitted through the dark sheet 50, and is emitted from the outer surface 11 of the panel-equipped display device 10 to observe the outside. Observed by In particular, when the visible light transmittance of the dark sheet 50 is 40% or more, a sufficient amount of image light can be transmitted through the dark sheet 50, so that the observer can observe a clear image. .

Further, ^L * ^a * ^{b * b} _{* 1} is ^a _{* 1} and ^{b *} values are values of ^{a *} in the color system of the dark sheet 50 as measured by transmitted light, which satisfies the following relationship .
_{^{((A * 1) 2 +}} (b * 1) 2) 1/2 ≦ 48
That is, the saturation of the dark sheet 50 is reduced. For this reason, even if the image light is mixed with the dark sheet 50 and observed, the dark sheet 50 effectively absorbs the visible light in the specific wavelength range, thereby effectively reducing the color reproducibility of the image. It can be suppressed.

  FIGS. 4 and 5 show a display device with a panel in a state where an image is not displayed on the display surface. First, the conventional display with panel 110 shown in FIG. 5 will be described. The conventional panel-mounted display device 110 includes the display device 120 having the display surface 121 and the panel member 140 having the opening 147, but unlike the present embodiment, it does not have a dark sheet. In such a display device with panel 110, even if the decorative portion 145 of the panel member 140 is provided as close as possible to the display surface 121 of the display device 120 in the image non-display state and appearance such as color or gloss, it is completely It is practically difficult to match the appearance, and a minute gap between the display device 120 and the panel member 140 causes a boundary B between the display surface 121 of the display device 120 and the panel member 140. Will stand out. For this reason, in the display device 110 with a conventional panel, the display surface 121 of the display device 120 is noticeable, and the design is deteriorated.

Next, the panel attached display device 10 of the present embodiment shown in FIG. 4 will be described. As described above, the panel-equipped display device 10 of this embodiment, dark sheet 50 as measured by the transmitted light has a value of L ^* in the L ^* a ^* b ^* colorimetric system L ^* ₁ is 20 or less and The dark-colored sheet 50 is disposed so as to cover the boundary B between the display surface 21 and the panel member 40. Therefore, the display surface 21 of the display device 20 in the image non-display state, the panel member 40 and the boundary B are observed uniformly darker by the dark sheet 50 as compared to the conventional display with panel 110 shown in FIG. Ru. Therefore, it is difficult to distinguish between the first portion A1 where the display surface 21 and the dark sheet 50 overlap and the second portion A2 where the panel member 40 and the dark sheet 50 overlap. . In other words, it becomes difficult to distinguish between the display surface 21, the panel member 40 and the boundary B. That is, the boundary B is less noticeable due to the dark color sheet 50.

  In particular, when the visible light transmittance of the dark sheet 50 is 60% or less, light transmitted through the dark sheet 50, for example, light transmitted through the dark sheet 50, reflected by the display surface 21, and transmitted again through the dark sheet 50. But it gets dark enough. Therefore, the display surface 21, the panel member 40, and the boundary B are more difficult to distinguish, and the boundary B becomes less noticeable.

Also, preferably, ^b _{* 1} is the value of ^a _{* 1} and ^{b *} are values of ^{a *} in ^{the L} * ^a * ^{b *} color system of the dark sheet 50 as measured by transmitted light, the following relationship I meet.
_{^{((A * 1) 2 +}} (b * 1) 2) 1/2 ≦ 48
When this relationship is satisfied, the dark sheet 50 is observed to be a color with low saturation, that is, black. Therefore, in the image non-display state, the display surface 21, the panel member 40 and the boundary B are more difficult to distinguish.

Furthermore, preferably, in the observation from the normal direction to the display surface 21, the display device with panel 10 is measured by the reflected light of the first portion A1, which is a portion where the display surface 21 and the dark sheet 50 overlap. that the ^L _{* a} is a value of ^{L *} in ^{the L} * ^a * ^{b *} color system of the panel-equipped display device 10, the reflected light of the panel member 40 and the dark color sheet 50 is a portion where the overlap second portion A2 The following relationship is satisfied with L ^* _b which is the value of L ^* in the L ^* a ^* b ^* color system of the display with panel 10 measured by the following equation.
│ L ^* _a- L ^* _b │ ≦ 3
When this relationship is satisfied, the difference in lightness between the first portion A1 and the second portion A2 is hardly recognized. That is, it is extremely difficult for the observer who observes the display with panel 10 to distinguish and recognize the first portion A1 and the second portion A2. Therefore, it becomes extremely difficult for the observer to recognize the boundary B between the first portion A1 and the second portion A2.

As described above, the display device with panel 10 according to the present embodiment forms the boundary B with the display surface 21 in the display device 20 having the display surface 21 and in the direction of the normal to the display surface 21. L ^* a ^* b ^{* of the} dark-colored sheet 50 provided with the panel member 40 arrange | positioned, and the dark-colored sheet 50 arrange | positioned so that the boundary B of the display surface 21 and the panel member 40 may be covered ^. L ^* ₁ which is the value of L ^{* in} the color system is 20 or less. According to such a display device with a panel 10, it is difficult for the dark sheet 50 to distinguish between the display surface 21, the panel member 40, and the boundary B when the image light is not emitted from the display surface 21. That is, in the image non-display state, the boundary B between the display surface 21 of the display device 20 and the panel member 40 provided around the display device 20 can be made less noticeable.

Further, in the display device with panel 10 according to the present embodiment, the values are a ^* ₁ and b ^* that are values of a ^* in the L ^* a ^* b ^* color system of the dark sheet 50 measured by transmitted light. b ^* ₁ satisfies the following relationship:
_{^{((A * 1) 2 +}} (b * 1) 2) 1/2 ≦ 48
According to such a display device with a panel 10, when image light is emitted from the display surface 21, visible light in a specific wavelength range is absorbed by the dark sheet 50, and the color reproducibility of the image observed is degraded. Can be effectively suppressed. In addition, in a state where image light is not emitted from the display surface 21, the dark sheet 50 is observed as black, which makes it more difficult to distinguish between the display surface 21, the panel member 40, and the boundary B. It can be made less noticeable.

  Furthermore, in the display device with panel 10 according to the present embodiment, the visible light transmittance of the dark sheet 50 is 40% or more and 60% or less. According to such a display device with a panel 10, a sufficient amount of image light can pass through the dark sheet 50 in a state where the image light is emitted from the display surface 21. Clear images can be observed without being blocked by 50. In addition, in a state in which image light is not emitted from the display surface 21, light transmitted through the dark sheet 50 becomes sufficiently dark, and the display surface 21, the panel member 40, and the boundary B become more difficult to distinguish. That is, the boundary B can be made more inconspicuous.

Further, in the display with panel 10 according to the present embodiment, in observation from the normal direction to the display surface 21, measurement is performed by reflected light of a portion where the display surface 21 of the display device 20 and the dark sheet 50 overlap. that the L ^* _a is a value of L ^* in the L ^* a ^* b ^* color system of the panel-equipped display device 10, the panel member 40 and the dark color sheet 50 and the panel with which is measured by the reflected light are overlapped portion The following relationship is satisfied with L ^* _b , which is the value of L ^* in the L ^* a ^* b ^* color system of the display device 10.
│ L ^* _a- L ^* _b │ ≦ 3
According to such a display device with panel 10, it is extremely difficult for an observer who observes the display device with panel 10 to recognize the difference in lightness between the first portion A1 and the second portion A2. Therefore, the boundary B, which is the boundary between the first portion A1 and the second portion A2, can be made more inconspicuous.

  Note that various modifications can be made to the embodiment described above.

  In the embodiment described above, the dark sheet 50 is a black single color. However, the dark-colored sheet 50 may be provided with any design such as wood grain or marble according to the environment in which the panel-equipped display device 10 is provided. The design given by the dark color sheet 50 and the design given by the decorative portion 45 of the panel member 40 are preferably the same in order to make the boundary B between the display surface 21 and the panel member 40 inconspicuous.

  The display device with panel 10 described above is used, for example, as an interior member or exterior member of a vehicle such as an automobile or a railway, an aircraft, a ship, a mobile object such as a ship or a spacecraft. As a specific example, the display device with panel 10 is used for a center console of a car or a door trim. Alternatively, the display device with panel 10 may be used by being incorporated into an interior member or exterior member of a building, an electronic device, furniture or an electrical appliance.

  The aspects of the present invention are not limited to the above-described embodiment, but also include various modifications that those skilled in the art can conceive, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications and partial deletions can be made without departing from the conceptual idea and spirit of the present invention derived from the contents defined in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 display apparatus with panel 11 outer surface 20 display apparatus 21 display surface 30 panel 40 panel member 41 base material part 45 decorative part 47 opening part 50 dark color sheet A1 1st part A2 2nd part B boundary

Claims (5)

A display device having a display surface;
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface;
A dark sheet disposed so as to cover the boundary between the display surface and the panel member;
The panel attached display device, wherein L ^* _1, which is the value of L ^* in the L ^* a ^* b ^* color system of the dark sheet measured by transmitted light, is 20 or less. The ^b _{* 1} is the dark color sheet ^L * ^a * ^{b * a} _{* 1} and ^{b *} values are values of ^{a *} in the color system is determined by the transmitted light satisfy the following relationship, according to claim 1 The display device with a panel described in.
_{^{((A * 1) 2 +}} (b * 1) 2) 1/2 ≦ 48   The panel attached display according to claim 1, wherein the dark sheet contains a black pigment.   The display apparatus with a panel according to any one of claims 1 to 3, wherein the visible light transmittance of the dark sheet is 40% or more and 60% or less. L ^* a ^* b ^* Table of the display device with the panel measured by reflected light of a portion where the display surface of the display device and the dark sheet overlap in observation from the normal direction to the display surface L ^* _a which is the value of L ^{* in} the color system, and the reflected light of the portion where the panel member and the dark sheet overlap each other In the L ^* a ^* b ^* color system of the display device with the panel L ^* with the value a is L ^* _b, satisfies the following relationship, the panel-equipped display device according to any one of claims 1 to 4.
│ L ^* _a- L ^* _b │ ≦ 3